Restore Your GM Truck or Van’s Electrical System
Are you chasing down frustrating electrical gremlins in your GM truck or van? Intermittent power windows, door locks with a mind of their own, a security light that won’t turn off, or interior lights that flicker for no reason are all classic signs of a failing Body Control Module (BCM). As the central command center for your vehicle’s body electronics, a faulty BCM can cause a cascade of bizarre issues that disrupt your daily drive. This isn’t just an annoyance; it can affect the safety and security of your vehicle.
This is a reliable, direct-fit replacement 2003-2007 GM BCM that solves these problems without the exorbitant cost and hassle of a dealership visit. We take the guesswork and extra steps out of the repair. Simply provide us with your vehicle’s VIN during checkout, and our technicians will program the module with the latest GM software specific to your truck or van. It arrives at your door ready for installation, saving you hundreds in programming fees and valuable time.
A Technician’s Notebook: The Silverado with a Ghost
I had a 2006 Silverado 2500 in the bay last month that was driving the owner crazy. The radio would cut out, the dome light would flicker while driving, and the power locks would randomly cycle. He’d already replaced the battery and checked the grounds. After hooking up the scan tool, I saw multiple U-codes, indicating a communication breakdown on the data bus. The common denominator was the BCM. Instead of sending him to the dealer for a new module and programming, we ordered one of these pre-flashed units. An hour after it arrived, the truck was fixed. No more ghost, just a happy customer who saved a significant amount of money and time.
Is Your Truck or Van Showing These Symptoms?
A failing BCM can manifest in many ways. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Power windows, mirrors, or door locks operating intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The security system light is illuminated, or the alarm goes off randomly.
- ✔ The radio or instrument cluster displays are malfunctioning.
- ✔ Communication error codes, such as U0140, stored in the system.
- ✔ Key fobs are not being recognized by the vehicle.
- ✔ Wipers behaving erratically or not parking in the correct position.
Your Straightforward Installation Guide
Installing your new 2003-2007 GM BCM is a manageable job for a confident DIYer. The location varies slightly between trucks and vans, but the process is similar.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before starting work.
- Locate the BCM: On Silverado and Sierra pickups, it’s typically found under the driver’s side of the dashboard, near the steering column. On Express and Savana vans, it’s usually located behind the center dash panel.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect Power: Reattach the negative battery terminal.
- Perform Post-Install Checks: Start the vehicle and test all functions controlled by the BCM—lights, locks, windows, radio, etc. Note that some post-install relearn procedures may be necessary.
Important Post-Installation Procedures
While this module is programmed to your VIN, your vehicle’s other computers may need to sync with the new BCM. This is a normal part of the process.
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade scan tool to sync the airbag system with the new BCM.
- Brake Pedal Position Relearn: In some cases, a brake pedal position sensor recalibration may be required to ensure proper brake light and traction control operation.
- No Core Charge: You are not required to return your old module. This eliminates core charges and return shipping hassles.
Disclaimer: Vehicle systems can be complex. We always recommend consulting a factory service manual or a qualified technician if you are unsure about any step.
Verified Fitment for Your GM Vehicle
This module is a direct replacement for part numbers 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. It is guaranteed to fit the following models with the specified options:
- Chevrolet Silverado 1500/2500/3500 (2003-2007 Classic, exc. Crew Cab)
- GMC Sierra 1500/2500/3500 (2003-2007 Classic, exc. Crew Cab)
- Chevrolet Express 1500/2500/3500 Van (2003-2007, check options)
- GMC Savana 1500/2500/3500 Van (2003-2007, check options)
- Chevrolet SSR (2003-2006)
Please use the detailed fitment list in this listing to confirm compatibility with your specific year, model, and options before ordering this 2003-2007 GM BCM.
Frequently Asked Questions
Do I need to program this BCM?
No. We program the module to your vehicle’s VIN before shipping. It arrives ready to install, saving you a trip to the dealership.
What does a Body Control Module do?
The BCM acts as the brain for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, interior lighting, the security system, and wipers.
Where is the BCM located on my truck?
On 2003-2007 Silverado and Sierra pickups, the BCM is usually located under the dashboard on the driver’s side. On Express and Savana vans, it is typically behind the center dash trim.
What if the airbag light comes on after I install it?
This is not uncommon. It simply means the new BCM needs to be electronically introduced to the airbag system (SDM). A procedure called ‘Setup SDM Primary Key in BCM’ can be performed by a shop with a capable diagnostic tool to resolve this.
Is there a core charge for this part?
No, there is no core charge. You can keep your old part, which simplifies the process and saves you money on return shipping.